δειρή

A. neck, throat, Il. 11.26, etc.; τὰ ἀπὸ τῆς δ. ornaments, Hdt. 1.51.

2. collar, Poll. 2.235.

II. in pl., gully, glen, Pi. O. 3.27, 9.59: but in sg., = δειράς, prob. in Hermesian. 7.54. (The original form is preserved in Arc. δερvά BCH 39.55 (Orchom.): Aeol. δέρρη is coined by EM 262.57 as etym. of δέρρις: Hsch. has δέρα· ὑπερβολὴ ὄρους, οἱ δὲ τὰ σιμὰ τῶν ὀρῶν by confusion with δειράς. Κοίλᾳ δέρᾳ, place-name in Inscr.Olymp. 46.30. Prob. from root of ζέρεθρον, βιβρώσκω.)